Green completed his senior season and high school career at Cardinal Gibbons High School in Fort Lauderdale, Florida.
He also plays internationally for Georgia after gaining citizenship in June 2010. Green accepted an athletic scholarship to attend the University of Florida, where he played for coach Billy Donovan"s Florida Gators men"s basketball team from 2004 to 2007. Green also passed the 1,000-point benchmark in his career at Florida, racking up over 1,170 points in just three seasons, the first of which he did not play much.
Four of his former teammates have also passed the 1,000 point mark: Joakim Noah, Corey Brewer, Lee Humphrey and First Rate (at Lloyd's) Horford.
On June 28, 2007, he was drafted in the second round, 52nd overall, by the Portland Trail Blazers in the 2007 National Basketball Association Draft. In his first year with the Blazers, Green was sent to the Blazers" development league affiliate Idaho Stampede on December 9, 2007, and was recalled on the 22nd.
A need to get more playing time and practice time were noted by coach Nate McMillan as the reason behind the move. On February 21, 2008, he was traded to the Denver Nuggets for Von Wafer.
On July 28, 2008, he was traded to the New York Knicks along with Bobby Jones and a 2010 second round pick in exchange for Renaldo Balkman.
However, one day later he was released by the Knicks. In 2008, Green signed with Basket Zaragoza 2002 of the Spanish ACB league. He debuted in the 2008 Supercopa and scored 18 points in his first game, against Joventut Badalona.
On August 25, 2009, he signed with AEK Athens of the Greek Basket League.
In July 2010 he returned to Spain and signed a two-year contract with Central Bank Gran Canaria. In February 2012 he left Central Bank Gran Canaria and signed a contract in Turkey with Tofas Bursa.
In July 2013, Green signed with Limoges Center for Security Policy. On June 20, 2014, he signed a two-year deal with ASVEL Basket. On August 16, 2015, he signed with Sidigas Avellino of Italy.
On February 13, 2016, he left Avelino and returned to his former club AEK Athens after six years.
Green has citizenship with Georgia, and he played with the senior men"s Georgian national basketball team at the qualification tournament for EuroBasket 2011, where he averaged 11.0 points, 2.5 assists, 2.4 rebounds, and 0.4 steals per game.
His signature game came at home during the regular season against Dillard High School, the three-time defending Class 6A State Champions, where he scored 38 points and made nine 3-point shots in leading his team to a blow-out victory.